PT-2018-18151 · Zsh+2 · Zsh+2

Joey Pabalinas · Published 2018-02-27 · Updated 2019-03-05 · CVE-2018-7548

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions zsh versions prior to 5.4.2

Description The issue arises from a NULL pointer dereference when using ${(PA)...} on an empty array result in the subst.c file of zsh.

Recommendations For versions prior to 5.4.2, update to version 5.4.2 or later to resolve the issue.

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2018-2144

CVE-2018-7548

MGASA-2018-0168

USN-3593-1

Affected Products

Alt Linux

Ubuntu

Zsh

References · 34

• https://ubuntu.com/security/CVE-2014-10071 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1100 · Security Note
• https://ubuntu.com/security/CVE-2018-7549 · Vendor Advisory
• https://usn.ubuntu.com/3593-1 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2018-0168.html · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7548 · Security Note
• https://ubuntu.com/security/CVE-2017-18205 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3593-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10714 · Security Note
• https://osv.dev/vulnerability/CVE-2018-7548 · Vendor Advisory
• https://ubuntu.com/security/CVE-2014-10070 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01392 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7549 · Security Note
• https://osv.dev/vulnerability/MGASA-2018-0168 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1071 · Security Note